/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)

This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2018 Live Networks, Inc.  All rights reserved.
// A 'ServerMediaSubsession' object that creates new, unicast, "RTPSink"s
// on demand, from a MPEG-1 or 2 Elementary Stream video file.
// Implementation

#include "include/MPEG1or2VideoFileServerMediaSubsession.hh"
#include "include/MPEG1or2VideoRTPSink.hh"
#include "include/ByteStreamFileSource.hh"
#include "include/MPEG1or2VideoStreamFramer.hh"

MPEG1or2VideoFileServerMediaSubsession *
MPEG1or2VideoFileServerMediaSubsession::createNew(UsageEnvironment &env,
                                                  char const *fileName,
                                                  Boolean reuseFirstSource,
                                                  Boolean iFramesOnly,
                                                  double vshPeriod) {
    return new MPEG1or2VideoFileServerMediaSubsession(env, fileName, reuseFirstSource,
                                                      iFramesOnly, vshPeriod);
}

MPEG1or2VideoFileServerMediaSubsession
::MPEG1or2VideoFileServerMediaSubsession(UsageEnvironment &env,
                                         char const *fileName,
                                         Boolean reuseFirstSource,
                                         Boolean iFramesOnly,
                                         double vshPeriod)
        : FileServerMediaSubsession(env, fileName, reuseFirstSource),
          fIFramesOnly(iFramesOnly), fVSHPeriod(vshPeriod) {
}

MPEG1or2VideoFileServerMediaSubsession
::~MPEG1or2VideoFileServerMediaSubsession() {
}

FramedSource *MPEG1or2VideoFileServerMediaSubsession
::createNewStreamSource(unsigned /*clientSessionId*/, unsigned &estBitrate) {
    estBitrate = 500; // kbps, estimate

    ByteStreamFileSource *fileSource
            = ByteStreamFileSource::createNew(envir(), fFileName);
    if (fileSource == NULL) return NULL;
    fFileSize = fileSource->fileSize();

    return MPEG1or2VideoStreamFramer
    ::createNew(envir(), fileSource, fIFramesOnly, fVSHPeriod);
}

RTPSink *MPEG1or2VideoFileServerMediaSubsession
::createNewRTPSink(Groupsock *rtpGroupsock,
                   unsigned char /*rtpPayloadTypeIfDynamic*/,
                   FramedSource * /*inputSource*/) {
    return MPEG1or2VideoRTPSink::createNew(envir(), rtpGroupsock);
}
